新型轮毂电机悬架控制策略研究
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摘要
采用轮毂电机驱动的车辆非簧载质量显著增大,并且路面激励直接作用在电机上,影响电机的电磁效应,使得振动加剧,因此提出一种新型动力吸振构型.将电机作为吸振器悬置在车轮之内,并针对此构型提出一种新的半主动悬架混合控制策略,且通过Matlab建模仿真.结果表明簧上加速度和轮胎动挠度均有所衰减,采用混合控制策略的悬架系统在平顺性方面有所提升.
The fact that vehicle unsprung mass driven by in-wheel motors is significantly increased,and the road surface excitation acts on the motor directly, will affect the electromagnetic effect of the motor,making the vibration intensified. Therefore, a new type of dynamic vibration-absorbing structure is proposed. The motor is suspended in the wheel as a vibration absorber, and a new semi-active suspension hybrid control strategy is proposed for this configuration. Through Matlab modeling and simulation, the results show that both the sprung acceleration and the tire dynamic deflection are attenuated, and the suspension system with hybrid control strategy has improved in terms of ride comfort.
The fact that vehicle unsprung mass driven by in-wheel motors is significantly increased,and the road surface excitation acts on the motor directly, will affect the electromagnetic effect of the motor,making the vibration intensified. Therefore, a new type of dynamic vibration-absorbing structure is proposed. The motor is suspended in the wheel as a vibration absorber, and a new semi-active suspension hybrid control strategy is proposed for this configuration. Through Matlab modeling and simulation, the results show that both the sprung acceleration and the tire dynamic deflection are attenuated, and the suspension system with hybrid control strategy has improved in terms of ride comfort.
引文
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[2]Tahami F,Kazemi R,Farhanghi S.A novel driver assist stability system for all-wheel-drive electric vehicles[J].IEEE Transactions on Vehicular Technology,2003,52(3):683-692.
[3]Hori,Y..Future vehicle driven by electricity and control-research on four-wheel-motored“UOT Electric March II”[C].USA:IEEE Piscataway NJ,2002:1-14.
[4]Xiong L,Yu Z,Wang Y,et al.Vehicle dynamics control of four in-wheel motor drive electric vehicle using gain scheduling based on tyre cornering stiffness estimation[J].Vehicle System Dynamics,2012,50(6):831-846.
[5]赵艳娥,张建武,韩旭.轮毂电机独立驱动电动汽车动力减振机构设计与研究[J].机械科学与技术,2008,27(3):395-398.
[6]鲁超.轮毂电机驱动电动汽车耦合动力学特性研究[D].淄博:山东理工大学,2016.
[7]谭迪.内置悬置的轮毂电机驱动系统动力学特性及结构优化[D].广州:华南理工大学,2013.
[8]张孝良.理想天棚阻尼的被动实现及其在车辆悬架中的应用[D].镇江:江苏大学:2012.
[9]M.米奇克.汽车动力学.C卷:[M].2版.北京:人民交通出版社,1997.
[10]Qin Y,Langari R,Gu L.The Use of Vehicle Dynamic Response to Estimate Road Profile Input in Time Domain[C].American:Amenican Socirty of Mechanical Engineers,2014:1-5.
[12]Ahmadian M,Pare C A.A Quarter-Car Experimental Analysis of Alternative Semiactive Control Methods[J].Journal of Intelligent Material Systems&Structures,2000,11(8):604-612.
[13]秦也辰.基于路面识别的车辆半主动悬架控制研究[D].北京:北京理工大学,2016.
[14]Ying M A,Deng Z,Xie D.Control of the Active Suspension for In-Wheel Motor[J].Journal of Advanced Mechanical Design Systems&Manufacturing,2013,7(4):535-543.